Well after all these years Ive got one . This makes it the double a DT2MX and the RT2MX . Now for the good news for you Yamaha pre 75 lovers by mid Jan Im going to have a large cull of rolling frames , motors , forks , tanks , and other collections of DT , RT, MX parts I will not be asking a heap for them but I will not be giving them away this pile has taken me years to collect so if your restoring early Yam's give me a Pm and I might be able to help with some hard to get parts . webco heads new 250 and 400 . there is tons of it so I wont list it all just call and ask . Iain